Predictable printing effect

The importance of proofing is unquestionable. If there is no proofing, even advertising can't be done. Proofing keeps the newspaper's printing effect under control. It is a well-known key link in the printing industry. Of course, it is not only used for advertising, but also for checking the correct match of the title and the picture, and it also helps to guarantee the correct allocation and imposition. However, when it comes to efficient newspaper production, it may not be able to achieve perfection. How to achieve balance? Proofing is a comprehensive solution to guarantee quality.

Proofing Hell <br> We often find errors when the time is most urgent. For example, when all people think that they are done, perhaps someone will find a hole in the product of an advertisement, or the debate between Bush and Gore is accompanied by Ru Paul's visit to Madonna.

Even sometimes, no one notices that something has gone wrong. At least until the first edition is available, editors or readers have to find misplaced charts or missing titles.

So how can one avoid mistakes when the only one who can fix or find the error is not? PDF (Adobe's portable file format) can solve problems for you:

Proofing Heaven <br> The beauty of using a PDF file is that it maintains the integrity of the file from beginning to end. Since it was established at the design stage, it can be used as the final proofing.

Designers can create PDF files with any software they are familiar with - such as Quark Xpress and PhotoShop. The color profile and all elements of the font can be embedded in the PDF file.

In Adobe's terminology, PDF is a file that purifies the PS file "distilled". Although they retain all the rich information of the PS file, they are only one of the components of the PS file and remain "open". In other words, the PDF file is small enough for fast newspaper network transmission and can be modified anytime anywhere.

Color profiles can be embedded at any step of the workflow, so changing the press is no longer a problem. Thanks to the use of color management software that simulates the printing color on the screen, PDF files can become nearly perfect "soft proofing" and can be checked through the Internet.

The PDF format also guarantees the integrity of the page, so editors can edit the page anywhere via the Internet.

Returning to reality PDF simplifies the process and eliminates the chance of error. However, the final color acceptance of an advertisement still requires newsprint. We will have to stick to the traditional printing steps until one day we can make the designer understand the correct interpretation of soft proofing.

The Production Department of USA Today will actually launch presses to create proofs for advertisers, show customers what they can do, and let customers decide whether to advertise this ad.

Their practice is very effective because customers can see the actual printing effect in the future.

How good would it be to make a proof without a print! Inkjet proofing came into being.

Predictable Colors <br> Today's inkjet systems have all the ingredients needed to simulate color printing. You can print on newsprint and you can create rose meshes, and with advanced color management tools can help you accurately match colors.

The ideal situation is that the color proofing of the inner pages should be as good as the advertisement proofing, that is to say, the high speed inkjet system must be chosen.

hardware……
There are two types of inkjet technology: continuous inkjet and drop-on-demand inkjet. Continuous ink jets continuously eject ink flow; drop-on-demand ink jets are required, and the speed is much higher than continuous ink jet.

On-demand ink jetting also has thermal inkjet and micro piezo. Although the thermal spray technique is faster, there are many disadvantages because directly heating the ink causes one or more colors to change, as well as larger, more inconsistent drops of ink. The ink used for the piezoelectric principle has a stronger viscosity and is easier to control.

Paper conveying system is another important factor. If the paper is misaligned, the printer cannot copy the exact screen. There is speed to consider. The high-speed print engine can output a 36-inch sample in 10 minutes at 720 dpi resolution.

software……
The main benefit of printing rose webs is the ability to anticipate and eliminate moiré, which requires the printer to have halftone dot copy capabilities. A 720 dpi printer can generate enough grayscale, but it must be supplemented with proper screen technology in order to produce accurate screen angles under 100 net lines.

Making color reproduction accurate is closely related to color management software rather than printers. The best color management should have a flexible color profile, which means that in addition to the default ICC profile, you can customize or edit the profile to match the color characteristics of a particular web press and display And the printer can accurately display it.

Imagine being able to print on newsprint that you actually use to print, and precisely match printing colors, and it can be completed in 15 minutes. Isn't that better than print proofing? Most importantly, reliable colors help you retain advertisers.